Class / Patent application number | Description | Number of patent applications / Date published |
420477000 | Zinc containing | 37 |
20080253924 | Master Alloy for Casting a Modified Copper Alloy and Casting Method Using the Same - An advantage of the invention is to provide a master alloy used in a casting of a modified copper alloy, grains of which can be refined during a melt-solidification, and also a method of casting a modified copper alloy using the same. | 10-16-2008 |
20090317291 | VARIABLE KARAT GOLD ALLOYS - A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The master alloy includes 16% silver, 71.771% copper, 12% zinc and 0.229% X, wherein X being selected from the group consisting of silicon, germanium, or mixtures thereof. The gold alloy may be made by first forming the master alloy and then mixing the gold with the master alloy. The gold alloy may also be made by mixing gold with the elements of the master alloy without first forming the master alloy. | 12-24-2009 |
20100226815 | Lead-Free Brass Alloy - The invention relates to brass alloys that are substantially lead-free. In the alloys of the invention, lead is replaced with tellurium resulting in alloys that exhibit excellent machinability and conductivity. | 09-09-2010 |
20110176956 | VARIABLE KARAT GOLD ALLOYS - A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The master alloy includes 16% silver, 71.771% copper, 12% zinc and 0.229% X, wherein X being selected from the group consisting of silicon, germanium, or mixtures thereof. The gold alloy may be made by first forming the master alloy and then mixing the gold with the master alloy. The gold alloy may also be made by mixing gold with the elements of the master alloy without first forming the master alloy. | 07-21-2011 |
20130177472 | BRASS ALLOY COMPRISING SILICON AND ARSENIC AND A METHOD OF MANUFACTURING THEREOF - An improved brass alloy providing improved ability for machining is detailed that is free of lead and is at the same time environmental friendly. The alloy comprises added alloying elements in an amount that is identified through an iterative process during manufacturing of the alloy. | 07-11-2013 |
20140271339 | COPPER ALLOY FOR ELECTRONIC DEVICE, METHOD FOR PRODUCING COPPER ALLOY FOR ELECTRONIC DEVICE, AND COPPER ALLOY ROLLED MATERIAL FOR ELECTRONIC DEVICE - One aspect of this copper alloy for an electronic device is composed of a binary alloy of Cu and Mg which includes Mg at a content of 3.3 to 6.9 atomic %, with a remainder being Cu and inevitable impurities, and a conductivity σ (% IACS) is within the following range when the content of Mg is given as A atomic %, σ≦{1.7241/(−0.0347×A | 09-18-2014 |
20160126689 | Corrosion Resistant Electrodes for Laser Chambers - Corrosion resistant electrodes are formed of brass that has been doped with phosphorus, arsenic, antimony, or combinations thereof. The electrodes are formed of brass that contains about 100 ppm to about 1,000 ppm of phosphorus, arsenic, or antimony, and the brass has no visible microporosity at a magnification of 400×. The brass may be cartridge brass that contains about 30 weight percent of zinc and the balance copper. Corrosion resistant electrodes also may be formed by subjecting brass to severe plastic deformation to increase the resistance of the brass to plasma corrosion. The corrosion resistant electrodes can be used in laser systems to generate laser light. | 05-05-2016 |
20220136085 | Lead-free Cu-Zn alloy - A lead-free Cu—Zn base alloy consisting of: 58-64 wt % Cu; 0.4-1.4 wt % Fe; 0.4-2.3 wt % Mn; 1.5-3.5 wt % Ni; 0.1-4.4 wt % Al; 0.5-1.8 wt % Si; as an alloy component that promotes chip breaking either 0.65-1.2 wt % Sn with up to 0.025 wt % P, or 0.03-0.1 wt % P with up to 0.25 wt % Sn; up to 0.1 wt % Pb; balance Zn together with unavoidable impurities, which are permitted up to 0.05 wt % per element, wherein the sum total of unavoidable impurities does not exceed 0.15 wt %; and wherein Cr is tolerated up to 0.035 wt %. | 05-05-2022 |
420478000 | Aluminum containing | 13 |
20090123329 | Metal Matrix Material Based On Shape-Memory Alloy Powders, Production Method Thereof and Use of Same - The invention relates to a metal matrix material based on shape-memory alloy powders, to the production method thereof and to the use of same. More specifically, the invention relates to a metal matrix material which is characterised in that it is based on particles of shape-memory alloy powder, having a base of copper at a concentration of between 45 vol.-% and 70 vol.-% in relation to the total volume of the material, said powder particles being supported by a metal matrix. The invention also relates to a method of producing the aforementioned material and to the use of same for absorbing vibrations, particularly acoustic and mechanical vibrations. | 05-14-2009 |
20090311130 | TIN-FREE, LEAD-FREE FREE-CUTTING MAGNESIUM BRASS ALLOY AND ITS MANUFACTURING METHOD - A tin-free lead-free free-cutting magnesium brass alloy comprises 56.0 to 64.0 wt % Cu, 0.6 to 2.5 wt % Mg, 0.15 to 0.4 wt % P and other elements 0.002 to 0.9 wt % which comprise at least two elements selected from the group consisting of Al, Si, Sb, Re, Ti and B and the balance being Zn with unavoidable impurities. The process for producing such alloy is also proposed. The invented alloy is excellent in cuttability, castability, hot and cold workability, corrosion resistance, mechanical properties and weldability and particularly applicable in spare parts, forging and casting which need cutting and grinding process. The cost of necessary metal materials of the invented alloy is lower than lead-free free-cutting bismuth and antimony brass alloy and is equivalent to lead-contained brass alloy. | 12-17-2009 |
20110002809 | LOW LEAD BRASS ALLOY AND METHOD FOR PRODUCING PRODUCT COMPRISING THE SAME - A low lead brass alloy and a method for producing a product comprising the low lead brass alloy are proposed. The low lead brass comprises 0.05 to 0.3 wt % of lead (Pb); 0.3 to 0.8 wt % of aluminum (Al); 0.01 to 0.4 wt % of bismuth (Bi); 0.1 to 0.15 wt % of microelements; and more than 97.5 wt % of copper (Cu) and zinc (Zn), wherein copper is in an amount ranging from 58 to 70 wt %. | 01-06-2011 |
420479000 | Nickel containing | 7 |
20080298999 | Method for Producing a Copper Alloy Having a High Damping Capacity - The invention relates to a copper alloy which is used for mechanically stressed components which, during operation, are subjected to vibrations and/or impacts to produce the same, and have particularly good mechanical damping properties. The composition of said copper alloy depends upon the utilisation temperature or working temperature of the component. Said copper alloy consists of 2-12 wt.-% manganese, 5-14 wt.-% aluminum and individually or in total 0-18 wt.-% of one or several elements, nickel, iron, cobalt, zinc, silicon, vanadium, niobium, molybdenum, chromium, tungsten, beryllium, lithium, yttrium, cerium, scandium, calcium, titanium, phosphorous, zirconium, boron, nitrogen, carbon, whereby each element does not contain more that 6% and 100 wt.-% copper. The alloy is obtained by adapting the martensite-austenitic conversation temperatures or the associated intervals M | 12-04-2008 |
20110081272 | LOW-LEAD COPPER ALLOY - The present invention provides a low-lead copper alloy, comprising 0.05 to 0.3 wt % of lead (Pb), 0.3 to 0.8 wt % of aluminum (Al), 0.01 to 0.4 wt % of bismuth (Bi), 0.1 to 2 wt % of nickel (Ni), and more than 96.5 wt % of copper (Cu) and zinc (Zn), wherein copper is in an amount ranging from 58 to 70 wt %. The low-lead copper alloy of the present invention has excellent material properties as well as good toughness and processability, thereby increasing the alloy strength and corrosion resistance thereof. | 04-07-2011 |
20110165013 | ANTITARNISH, ANTIMICROBIAL COPPER ALLOYS AND SURFACES MADE FROM SUCH ALLOYS - An antimicrobial, tarnish resistant copper alloy with a golden visual appearance comprising between about 1% and about 4% Ni, up to 3% Al, and optionally Zn and/or Mn up to a total of about 15%. | 07-07-2011 |
20110182768 | LEAD-FREE BRASS ALLOY - The present invention provides a lead-free brass alloy, including 0.3 to 0.8 wt % of aluminum, 0.01 to 0.4 wt % of bismuth, 0.05 to 1.5 wt % of iron and more than 96 wt % of copper and zinc, wherein the copper is present in an amount ranging from 58 to 75 wt %. The brass alloy of the present invention meets the standard of the environmental regulation, wherein the lead content is less than 0.25 wt % based on the weight of the alloy. Further, the brass alloy of the present invention has 0.05 to 1.5 wt % of iron and less than 0.4% of bismuth, so as to lower production cost, eliminate cracks and increase production yield. | 07-28-2011 |
20130330227 | Copper-Zinc Alloy for a Valve Guide - A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy is formed of 59 to 73% copper, 3.1 to 8.3% manganese, 2 to 6% aluminum, 0.5 to 2% silicon, 0.2 to 1.2% iron, and the remainder zinc and inevitable impurities. | 12-12-2013 |
20140112822 | SILVER-WHITE COPPER ALLOY AND METHOD OF PRODUCING SILVER-WHITE COPPER ALLOY - Provided are a silver-white copper alloy which has superior mechanical properties such as hot workability, cold workability, or press property, color fastness, bactericidal and antibacterial properties, and Ni allergy resistance; and a method of producing such a silver-white copper alloy. The silver-white copper alloy includes 51.0 mass % to 58.0 mass % of Cu; 9.0 mass % to 12.5 mass % of Ni; 0.0003 mass % to 0.010 mass % of C; 0.0005 mass % to 0.030 mass % of Pb; and the balance of Zn and inevitable impurities, in which a relationship of 65.5≦[Cu]+1.2×[Ni]≦70.0 is satisfied between a content of Cu [Cu] (mass %) and a content of Ni [Ni] (mass %). In a metal structure thereof, an area ratio of β phases dispersed in an α-phase matrix is 0% to 0.9%. | 04-24-2014 |
20160052774 | COPPER ALLOY FOR PRODUCING HORSE BITS OR HORSE BIT PARTS - A copper alloy to produce for horse bits or parts thereof is composed of 1 wt % to 30 wt % manganese, 1 wt % to 30 wt % zinc, and the remainder copper and other additives, the other additives in total being less than 6 wt %, in particular less than 3 wt %. | 02-25-2016 |
420480000 | Manganese containing | 3 |
20080240973 | Copper-Zinc Alloy and Synchronizer Ring Produced Therefrom - A copper-zinc alloy is particularly suitable for forming synchronizer rings. The novel alloy contains 55 to 75 wt. % copper, 0.1 to 8 wt. % aluminum, 0.3 to 3.5 wt. % iron, 0.5 to 8 wt. % manganese, 0 to less than 5 wt. % nickel, 0 to less than 0.1 wt. % lead, 0 to 3 wt. % tin, 0.3 to 5 wt. % silicon, 0 to less than 0.1 wt. % cobalt, 0 to less than 0.05 wt. % titanium, 0 to less than 0.02 phosphorus, unavoidable impurities and the remainder zinc. | 10-02-2008 |
20150376736 | COPPER-ZINC ALLOY FOR A PLUMBING FITTING AND METHOD FOR THE PRODUCTION THEREOF - A copper-zinc alloy, in particular for providing components for a plumbing fitting. The alloy comprises (in % by weight): between 63.0 and 64.5% Cu, between 33.8 and 36.8% Zn, between 0.0 and 0.20% Pb, between 0.2 and 0.7% Al, between 0.04 and 0.14% As, between 0.0 and 0.3% Fe, between 0.0 and 0.3% Sn, between 0.0 and 0.1% Mn, and residual constituents in respective maximum quantities of 0.02%. A method for producing a cast component is provided that includes a copper-zinc alloy of this type. The copper-zinc alloy and the components produced therewith permit a particularly environmentally-friendly, cost-effective production of plumbing fittings. | 12-31-2015 |
20150376737 | COPPER-ZINC ALLOY FOR A PLUMBING FITTING AND METHOD FOR THE PRODUCTION THEREOF - A copper-zinc alloy, in particular for providing components for a plumbing fitting. The alloy includes (in % by weight): between 63.5 and 63.8% Cu, between 35.2 and 35.6 Zn, between 0.17 ans 0.20% Pb, between 0.32 and 0.4% Al, between 0.11 and 0.13% As, between 0.16 and 0.2% Fe, between 0.0 and 0.2% Sn, between 0.0 and 0.2% Mn, and residual constituents in respective maximum quantities of 0.02%. A method for producing a cast component is provided that includes a copper-zinc alloy of this type. The copper-zinc alloy and the components produced therewith permit a particularly environmentally-friendly, cost-effective production of plumbing fittings. | 12-31-2015 |
420481000 | Nickel containing | 8 |
20090317292 | VARIABLE KARAT GOLD ALLOYS - A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The gold alloy may be made by first forming the master alloy and then mixing the gold with the master alloy. The gold alloy may also be made by mixing gold with the elements of the master alloy without first forming the master alloy. In another embodiment, the master alloy used to make a white gold (variable) karat alloy will include from about 23.33% to about 43.33% copper, from about 23.33% to about 43.33% nickel, from about 3.33% to about 23.33% zinc, and from about 10 to about 30% silver. Another embodiment of a master alloy used to make a white gold (variable) karat alloy will include from about 43.33% to about 66% copper, from about 8 to about 39.33% nickel, and from about 4.67% to about 36.67% zinc. | 12-24-2009 |
20110171059 | VARIABLE KARAT GOLD ALLOYS - A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The gold alloy may be made by first forming the master alloy and then mixing the gold with the master alloy. The gold alloy may also be made by mixing gold with the elements of the master alloy without first forming the master alloy. In another embodiment, the master alloy used to make a white gold (variable) karat alloy will include from about 23.33% to about 43.33% copper, from about 23.33% to about 43.33% nickel, from about 3.33% to about 23.33% zinc, and from about 10 to about 30% silver. Another embodiment of a master alloy used to make a white gold (variable) karat alloy will include from about 43.33% to about 66% copper, from about 8 to about 39.33% nickel, and from about 4.67% to about 36.67% zinc. | 07-14-2011 |
20120207643 | Low Silver, Low Nickel Brazing Material - A homogenous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630° F. and is preferably between about 1250° F. and 1500° F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may also include a flux, such as a core or a coating. | 08-16-2012 |
20120288402 | COPPER ALLOY HAVING HIGH STRENGTH, HIGH ELECTRIC CONDUCTIVITY AND EXCELLENT BENDING WORKABILITY - A copper alloy having high strength, high electrical conductivity, and excellent bendability, the copper alloy containing, in terms of mass %, 0.4 to 4.0% of Ni; 0.05 to 1.0% of Si; and, as an element M, one member selected from 0.005 to 0.5% of P, 0.005 to 1.0% of Cr, and 0.005 to 1.0% of Ti, with the remainder being copper and inevitable impurities, in which an atom number ratio M/Si of elements M and Si contained in a precipitate having a size of 50 to 200 nm in a microstructure of the copper alloy is from 0.01 to 10 on average, the atom number ratio being measured by a field emission transmission electron microscope with a magnification of 30,000 and an energy dispersive analyzer. According to the invention, it is possible to provide a copper alloy having high strength, high electrical conductivity, and excellent bendability. | 11-15-2012 |
20130323114 | HIGH-STRENGTH COPPER ALLOY FORGING MATERIAL - The present invention relates to a high-strength copper alloy forging material having properties of high hardness, high strength and high thermal conductivity. | 12-05-2013 |
20140308159 | WHITE-COLORED COPPER ALLOY WITH REDUCED NICKEL CONTENT - Disclosed is a white-colored copper alloy comprising by weight up to 30% zinc, up to 20% manganese, up to 5% nickel with the balance copper. This alloy may have from 6% to 25% zinc, from 4% to 17% manganese, from 0.1% to 3.5% nickel and the balance copper. The balance copper in the alloy may further contain at least one of: up to 0.5% of at least one of the group which consists of Sn, Si, Co, Ti, Cr, Fe, Mg, Zr, and Ag; and up to 0.1% of at least one of the group which consists of P, B, Ca, Ge, Se, Te. It may also contain up to 0.3% Zr by weight. The alloy may have an electrical conductivity greater than 2.5% IACS at eddy current gauge exciting frequencies between 60 kHz and 480 kHz. | 10-16-2014 |
20160032429 | Low Silver, Low Nickel Brazing Material - A homogenous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630° F. and is preferably between about 1250° F. and 1500° F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may also include a flux, such as a core or a coating. | 02-04-2016 |
20160189693 | NICKEL BRASS CYMBAL HAVING LOW NICKEL CONTENT - According to some aspects, a cymbal is provided comprising a nickel brass primarily comprising copper and further comprising zinc and nickel, wherein the nickel brass comprises between 3 and 9 percent nickel by weight. According to some aspects, a method of producing a cymbal comprising the nickel brass is provided. | 06-30-2016 |
420482000 | Manganese containing | 3 |
20120251383 | THRUST BEARING FOR TURBOCHARGER OF INTERNAL-COMBUSTION ENGINE - A thrust bearing for a turbocharger of an internal-combustion engine is made of a copper alloy including a brass matrix and a needle-like Mn-Si-based compound dispersed in the brass matrix. Not less than 50% of the needle-like Mn-Si-based compound dispersed in a region from a surface of a sliding portion of the thrust bearing to a depth of 50 μm have a major axis extending from the inside of the sliding portion to the surface. The major axis makes an angle of 30° to 150° with the surface of the sliding portion when observed in a sectional view perpendicular to the surface of the sliding portion. | 10-04-2012 |
20130089459 | COPPER-BASED SLIDE MEMBER - In a copper-based slide member in which needle-shaped Mn—Si based compounds are dispersed in a brass structure, 50% or more of a total number of the needle-shaped Mn—Si based compounds having lengths of 50 μm or more in a major axis direction are constituted of a plurality of small particles. Thereby, even if the needle-shaped Mn—Si based compounds fall off during sliding, the small particles which constitute the needle-shaped Mn—Si based compounds may fall off. Thus, the frequency of falling off of the coarse needle-shaped Mn—Si based compound which damages a shaft and a bearing is decreased. Therefore, seizure hardly occurs. | 04-11-2013 |
20140030139 | Cu-P-Ag-Zn BRAZING ALLOY - The present invention relates to a Cu—P—Ag—Zn brazing alloy, and more particularly, to a brazing alloy composed of copper (Cu), phosphorus (P), zinc (Zn), and silver (Ag), and including one or two or more elements of indium (In), gallium (Ga), boron (B), tin (Sn), silicon (Si), germanium (Ge), lithium (Li), nickel (Ni), and manganese (Mn). The present invention is composed of 1% by weight to 50% by weight of silver (Ag), 10% by weight to 35% by weight of zinc (Zn), 0.01% by weight to 4% by weight of phosphorus (P), and the remainder of copper (Cu). | 01-30-2014 |
420483000 | Noble metal containing | 5 |
20090185945 | KARATIUM PINK - A jewelry alloy that is approximately a 10% or 2.4 karat alloy that has similar color huge and shine and characteristics of 10 karat gold and higher. This alloy is considerably less expensive than traditional 10 karat gold and higher, but has all the similar working characteristics as working in sterling or 10 karat gold metal alloys. The alloy has the following compositions by weight; Gold 5.00-20.00%, Silver 35.00-55.00%, Copper 40.00-60.00%. In addition to its nice pink color and low cost it provides retailers with an affordable alloy for jewelry and provides jewelry craftsmen a low cost pink alloy that responds well to the jewelry manufacturing process (e.g., casting, milling, soldering, tooling, stone setting, polishing and plating). | 07-23-2009 |
20100322818 | GOLD ALLOYS - A gold alloy having, expressed by weight, about 24.5 to 25.5% Au, about 19.0 to 23.0% Ag, about 43.0 to 47.0% Cu, about 6.0 to 10.0% Zn, about 0.05 to 0.30% Si, and about 0.005 to 0.03% Ir. Alternatively, a alloy having, expressed by weight, about 16-17% Au, about 19-23% Ag, about 50-55% Cu, about 6-10% Zn, about 0.05-0.30% Si, and about 0.005-0.03% Ir. | 12-23-2010 |
20130129562 | PINK COLORED METAL ALLOY HAVING LOW GOLD CONTENT - Pink colored metal alloys have a low gold content. The pink colored metal alloys of the present disclosure display a high level of tarnish resistance during extended use and wear, and have the appearance and properties comparable 10 karat (or above) gold alloys, which have a significantly higher gold content. | 05-23-2013 |
20140328717 | FANCY COLOR SILVER CONTAINING ALLOYS - The present invention is directed to a formulation of one or more low silver containing alloys (including those with silver content below 50 weight %, “w %”) that show one of the group of distinct pink, yellow and green colors and further demonstrate enhanced resistance to tarnish and other beneficial features described herein. | 11-06-2014 |
20150354029 | MASTER ALLOY COMPOSITION FOR PRODUCING GOLD ALLOYS AND GOLD ALLOY - A master alloy composition for producing gold alloys with innovative refiners system comprising iridium (Ir): 0.01÷0.8% by weight, ruthenium (Ru): 0.002÷0.9% by weight, rhodium (Rh): 0.002÷0.8% by weight, and copper (Cu): 20÷99.965% by weight, wherein iridium (Ir), ruthenium (Ru) and rhodium (Rh) are the grain refiners. | 12-10-2015 |